An occult cysto-biliary communication in liver hydatid disease is still a major problem in surgical practice. Radiologic and intraoperative findings may not be helpful to detect cysto-biliary communications in some asymptomatic patients with liver hydatid disease. Biliary leakage is a troubling complication that arises after conservative surgery in patients who have occult "insidious" cysto-biliary communications. We aimed to identify the factors which are associated with the risk of occult insidious cysto-biliary communications in patients preoperatively who developed biliary leakage after surgery. We investigated the records of 183 asymptomatic patients treated for liver hydatid cyst and analyzed potential predictors of occult insidious cysto-biliary communication, retrospectively. There were 115 female and 68 male patients; the mean age was 42.3 years. Occult insidious cysto-biliary communications which presented as postoperative biliary leakage found in 24 (13.1%). Independent clinical predictors were alkaline phosphatase >133 U/L, total bilirubin levels >1.2 mg/dL, white blood cell count >10,000/mm(3) and cyst diameter >10 cm on multivariate analysis. Seventeen of 24 were low output biliary fistula which resolved spontaneously within 9.2 days. The remaining 7 were high output biliary fistula for which endoscopic sphincterotomy was performed in all patients, fistulas resolved within 22.6 days. Average interval between endoscopic sphincterotomy and fistula closure was 10.3 days. Mean hospital stay was longer in patients with biliary leakage than in those without (9.8 vs. 4.2 day p<0.001). There was no hospital mortality. The predictors demonstrated in this study should allow the likelihood of occult insidious cysto-biliary communication to be determined and, thus, indicate the need for additional procedures during operations to prevent the complications of biliary leakage.

Aim: To investigate the effect of preoperative Lugol's iodine on intraoperative bleeding in patients with hyperthyroidism. Material and methods This controlled, randomized, prospective cohort was carried out on 40 patients who admitted for surgery due to hyperthyroidism. Cases were randomly assigned to receive either preoperative treatment with Lugol solution (Group 1) or no preoperative treatment with Lugol solution (Group 2). Group 3 (n = 10) consisted of healthy adults with no known history and signs of hyperthyroidism. Blood flow through the thyroid arteries of patients was measured by color flow Doppler ultrasonography. Free T3, free T4, TSH, thyroid volume and the resistance index of the four main thyroid arteries were measured in all patients. Results: There was not a significant difference between gender, preoperative serum thyroid hormone levels, or thyroid gland volumes between groups 1 and 2. The mean blood flow of the patients in Group 1 was significantly lower than values in Group 2. When age, gender, thyroid hormone, TSH, thyroid volume, blood flow, and Lugol solution treatment were included as independent variables, Lugol solution treatment (OR, 7.40; 95% CI, 1.02–58.46; p = 0.001) was found to be the only significant independent determinant of intraoperative blood loss. Lugol solution treatment resulted in a 7.40-fold decrease in the rate of intraoperative blood loss. Conclusion: Preoperative Lugol solution treatment was found to be a significant independent determinant of intraoperative blood loss. Moreover, preoperative Lugol solution treatment decreased the rate of blood flow, and intraoperative blood loss during thyroidectomy.

The incidence of cholelithiasis increases with age. More octogenarian (≥80 y) patients are undergoing laparoscopic cholecystectomy (LC) operation throughout the world. A retrospective study was conducted on patients older than 80 years (group 1: 111 patients) and those in the 18 to 79 years age group (group 2: 185 patients), who underwent LC between July 2005 and October 2009. The variables analyzed were the presentation, demographics, comorbid illnesses, American Society of Anaesthesiology (ASA) scores, history of previous abdominal surgery, the operative time, postoperative morbidity and mortality, and the length of hospital stay. A comparison was made between the two groups. Data was evaluated by using the χ and the Fisher exact test. P<0.005 was considered significant. The difference in both groups in the mean age and ASA scores were significant. The indication for LC was gallstone disease in 87 (78.4%) patients, acute cholecystitis in 16 (14.4%), and gallstone pancreatitis in 8 (7.2%) of group 1 patients. The conversion rate was not statistically significant. The mean operative time was 77 minutes in group 1 patients, and this was significantly longer than that of group 2 patients. The postoperative oral intake within 24 hours of surgery was significantly earlier in group 2 patients. Other parameters were not significantly different between the 2 groups. LC in octogenarians is a relatively safe procedure that can be performed with low morbidity and mortality rates. The comorbidities and higher ASA scale are major risk factors for postoperative complications in this age group of patients.

The role of multiorgan damage in the mortality caused by ischemic limb injury is still not clarified. The objective of this study was to examine the potential protective effects of hyperbaric oxygen (HBO) and iloprost (IL) therapy on lung damage induced by limb ischemia/reperfusion injury in a rabbit model, using both biochemical and histopathological aspects.

This study aimed to evaluate the effects of hemodialysis catheters on the survival of subsequent arteriovenous fistulas, according to the relative localization to the catheters. A total of 201 patients who initiated dialysis therapy using a hemodialysis catheter were eligible for this retrospective study. Arteriovenous fistulas were created on the nondominant upper extremity after the placement of hemodialysis catheters. The catheters were removed after four consecutive successful dialyses via arteriovenous fistulas. The effective factors on arteriovenous fistula failure were determined in and the prognostic factors for survival were modeled by regression analysis. The relative placement of catheters as ipsi- or contralateral was found to significantly affect the survival of the arteriovenous fistulas. The overall survival was significantly longer in the contralateral arteriovenous fistula group (778.7 ± 28.8 vs. 247.3 ± 26.1 days; p < 0.001). The independent predictors of arteriovenous fistula survival were found to be relative side of arteriovenous fistula and hemodialysis catheter, age, and the presence of hypertension in multivariate analyses. This study showed that ipsilateral localization of the catheters and arteriovenous fistulas negatively affect the cumulative arteriovenous fistula survival. Therefore, to improve vascular access survival, side of catheters or arteriovenous fistulas should always be considered.